Earthquake with magnitude of Md 1.1 on date 01-09-2023 and time 08:09:05 (Italy) in region 2 km S Zuccarello (SV)

A magnitude Md 1.1 earthquake occured in region: 2 km S Zuccarello (SV), on

  • 01-09-2023 06:09:05 (UTC)
  • 01-09-2023 08:09:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0970, 8.1130 at 5 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Zuccarello SV 2 309 309
Arnasco SV 2 645 954
Cisano sul Neva SV 3 2085 3039
Castelbianco SV 4 330 3369
Vendone SV 4 388 3757
Castelvecchio di Rocca Barbena SV 4 145 3902
Erli SV 5 245 4147
Ortovero SV 5 1586 5733
Onzo SV 6 219 5952
Balestrino SV 6 595 6547
Villanova d'Albenga SV 6 2657 9204
Garlenda SV 7 1254 10458
Nasino SV 7 207 10665
Toirano SV 8 2644 13309
Aquila d'Arroscia IM 9 166 13475
Alto CN 9 128 13603
Ranzo IM 9 557 14160
Casanova Lerrone SV 9 749 14909
Albenga SV 10 24213 39122
Ceriale SV 10 5561 44683
Boissano SV 10 2492 47175
Borghetto Santo Spirito SV 11 4948 52123
Bardineto SV 11 756 52879
Alassio SV 11 10934 63813
Borghetto d'Arroscia IM 11 456 64269
Stellanello SV 11 808 65077
Testico SV 12 196 65273
Loano SV 12 11407 76680
Caprauna CN 13 104 76784
Garessio CN 13 3244 80028
Vessalico IM 13 282 80310
Giustenice SV 14 977 81287
Laigueglia SV 14 1810 83097
Villa Faraldi IM 14 444 83541
Cesio IM 15 283 83824
Pietra Ligure SV 15 8992 92816
Magliolo SV 15 974 93790
Tovo San Giacomo SV 15 2582 96372
Calizzano SV 16 1475 97847
Andora SV 16 7552 105399
Armo IM 16 111 105510
Pieve di Teco IM 17 1338 106848
Chiusanico IM 17 607 107455
Caravonica IM 17 282 107737
Borgio Verezzi SV 17 2205 109942
Ormea CN 17 1617 111559
Diano Arentino IM 17 722 112281
Chiusavecchia IM 18 577 112858
Priola CN 18 701 113559
Diano San Pietro IM 19 1145 114704
San Bartolomeo al Mare IM 19 3129 117833
Lucinasco IM 19 272 118105
Rialto SV 19 564 118669
Borgomaro IM 19 865 119534
Cervo IM 19 1187 120721
Pontedassio IM 19 2323 123044
Calice Ligure SV 19 1730 124774
Diano Castello IM 19 2214 126988
Pornassio IM 19 685 127673
Aurigo IM 20 347 128020

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SW of Savona (61345 inhabitants)
40 Km NE of Sanremo (54807 inhabitants)
56 Km SE of Cuneo (56081 inhabitants)
74 Km W of Genova (586655 inhabitants)
90 Km S of Asti (76202 inhabitants)
99 Km SW of Alessandria (93943 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
Md 1.1 2023-09-01
06:09:05
44.0968 8.1127 5 2023-09-01
06:19:18
Sala Sismica INGV-Roma 120651451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-01 06:09:05 ± 0.21
Latitude 44.0968 ± 0.0162
Longitude 8.1127 ± 0.0188
Depth (km) 5 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120651451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2099
Semi-minor axis of confidence ellipse (meter) 974
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 321
Circular confidence region, given by single value of horizontal uncertainty (meter) 2100.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 181
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.03687
Epicentral distance of station farthest from the epicenter (degree) 0.24372
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:1.1

Field Value
Value 1.1
Uncertainty 0.5
Num. used stations 4
Type of magnitude Md
Reference to an origin 120651451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-01 06:19:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.IMI.HHZ. 2023-09-01T06:09:14.92 0.6 undecidable manual S 220 27.0507 100 -0.41 46
GU.MGRO.HHZ. 2023-09-01T06:09:14.37 0.6 undecidable manual S 256 24.9528 101 -0.25 48
GU.CANO.HHZ. 2023-09-01T06:09:11.16 0.3 undecidable manual S 39 15.7731 107 -0.36 72
GU.IMI.HHZ. 2023-09-01T06:09:11.48 0.1 undecidable manual P 220 27.0507 100 0.18 97
GU.MGRO.HHZ. 2023-09-01T06:09:10.90 0.3 undecidable manual P 256 24.9528 101 0.01 76
GU.CANO.HHZ. 2023-09-01T06:09:09.25 0.1 undecidable manual P 39 15.7731 107 0.16 100
GU.RORO.HHZ. 2023-09-01T06:09:07.93 0.6 undecidable manual S 295 4.0959 141 -0.07 52
GU.RORO.HHZ. 2023-09-01T06:09:07.33 0.1 undecidable manual P 295 4.0959 141 0.27 100
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download